When Nothing Left Unsaid, the HBO documentary consisting of conversations between Anderson Cooper and his mother, Gloria Vanderbilt, premiered earlier this year, critics pointed out that the film stayed mum about Christopher Stokowski, Cooper's estranged half-brother.

Now, Cooper (above left, with his mother and late brother Carter, in 1976) has confirmed to the New York Post that he and Stokowski have reconciled after 38 years of estrangement. Stokowski, the newspaper reports, disappeared and became a recluse in 1978 following a dispute with Vanderbilt's therapist about his love life.

The release of the documentary "sparked renewed interest in his missing brother, who contacted the family through [April] Sandmeyer," Stokowski's former fiancée.

"I'm very happy for them and glad to have played a part in them being back in touch," she tells the Post, which reports that Cooper and his half-brother—the son of conductor Leopold Stokowski—three times since the film was released in April.

This story originally appeared on Townandcountrymag.com.* Minor edits have been made by the Townandcountry.ph editors.